For the engineering stress-strain curve, a) Read the value of Ultimate Tensile Strength, UTS. b) In order to find Yield Strength, Y, draw a line parallel to the elastic region starting from a strain of 0.2%. The yield strength is the vertical coordinate of the point where this line you have just drawn intersects with the stress strain curve. Report the values you have measured in the below table.

2) Calculate the following: A) Estimate the modulus of resilience. It uses the expanded scale. B) Estimate the modulus of toughness. It uses the regular scale with each block being 0.04 in width. 8 σ (ksi) 80 70 60 50 40 30 20 10 0 0 0 Stress vs. Strain Uses Regular Scale Uses Expanded Scale 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 € (in./in.)

When an object is placed underwater, the pressure on the object is subjected to uniform stress on all sides. a) define volume strain, the bulk modulus, compressibility, and the relationship between the bulk modulus and compressibility. b) A 100 litre volume of liquid is subjected to a 2000 psi increase. If the compressibility of the liquid is 5 x 10-5 per atm, find the bulk strain and absolute decrease in the volume of the liquid c) explain the concepts of shear stress and shear strain? could these concepts be applied to the fluid problem above?

640 480 160 0.002 0,004 0.006 0.008 0.010 Strain (mm/mm) A tensile test specimen of Aluminum alloy having a gauge length of 280 mm was tested to fracture. Stress and strain data obtained during the test are shown in the attached Figure. **Answers are approximate - do your best to read the graph. Determine: (a) the modulus of elasticity in GPa (4sigs). Enter this value into D2L answer box. (b) the proportional limit in MPa (3sigs). (c) the ultimate strength in MPa (3sigs). (d) Ductility of material based on percent elongation. (3sigs) Your Answer: Stress (MPa)

Determine the percentage of ductility of a metal alloy having the following tensile stress-strain diagram. Tensile stress-strain diagram 450 400 350 300 250 200 150 100 NO 50 0.05 0.1 0.15 0.2 0.25 0.3 0 35 0.4 Strain 300 EN Stress (Mpa)

Can someone please help me to correctly solve all the following parts of this question. Thank you!

need help with this review question  Engineering of Materials  I got   3,75*10-4 and 6.375*10-4 answers but there incorrect Part B